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# calculate weeks between 2 dates

Joel Carklin
Greenhorn
Posts: 28
Hi,
Can someone please explain to me how I would calculate the number of weeks between two dates. I know I would be using the calendar class but I've got myself into a muddle!
Any assistance apreciated
Thanks
Joel

Ranch Hand
Posts: 216
For example, you can get time for both in milliseconds and then subtract one from the other. From there get number of days/weeks.

Alex Ku
Ranch Hand
Posts: 47
In Calendar class, there is a static field - WEEK_OF_YEAR.
So, you just need to find the week of year of two input dates and do a substraction (make sure the input dates are in the same year).

kawaii
[ February 25, 2002: Message edited by: kawaii desu ]

Jim Yingst
Wanderer
Sheriff
Posts: 18671
You also need to decide what you really mean when you say "number of weeks" between two dates. How many weeks were there between Friday, Feb 22, and Monday, Feb 25? 1? 0? 0.4286? What about between Monday Feb 25 and Thursday Feb 28? Does the answer change? The way you want to answer these questions will determine how you do the calculation.

Joel Carklin
Greenhorn
Posts: 28
Thanks for all your help.